The Expected Value of a Random Variable Is

question 52

Multiple Choice

The expected value of a random variable is

• A) the value of the random variable that should be observed on the next repeat of the experiment.
• B) the value of the random variable that occurs most frequently.
• C) the square root of the variance.
• D) None of these alternatives is correct.

---

Definitions:

T-Score

A standardized score that indicates how many standard deviations an element is from the mean of a distribution.

Confidence Estimate

A range of values calculated from the sample data that is likely to include the true value of an unknown population parameter with a certain level of confidence.

T-Score

A standardized score that indicates how many standard deviations an observation is from the mean of the distribution.

Confidence Estimate

An interval estimate that is used to express the degree of uncertainty associated with a sample statistic.